DEVICE FOR BIOLOGICAL OBSERVATIONS Russian patent published in 2010 - IPC A61B1/45 A61B1/06 G01N21/64 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices for observation of biological objects. Device contains illumination unit and unit of control over signal processing, which controls operations of image reading unit and produces read image signal into display device, transforming light reflected from live organism photoelectrically basing on irradiating light and forms read image signal. Device also contains calculation unit, which forms spectrum signal corresponding to optic image in narrow wavelength band, basing on read image signal by processing signals, unit of colour regulation, which producing spectrum signal into display device, regulates differing colour tone for each of set of bands forming spectrum signal and unit of image quality correction, which corrects quality of image in signal which is to be produced into display device. For first version unit of image quality correction has weight processing circuit and summing unit for adding two signals of brightness from weight processing circuit. In second version quality correction unit includes unit of processing with filtration by means of space filter; calculation unit for calculation of brightness in localised region in read image signal and/or in spectrum signal and weight processing unit for performing in accordance with calculates brightness, weighing for noise-suppressing processing. In third version unit of image quality correction performs control over change of space-frequency characteristics in filter, which allows changing space frequency of read image signal or spectrum signal formed by preliminarily set transformation from read image signal. In fourth version with exception of signal processing unit, which includes calculation unit and colour regulation unit, other units of signal processing are units which perform processing of signals for displaying in display device, and include at least one of processings: of balance of white semi-tone transformation and space-frequency processing in order to increase quality.

EFFECT: correction of information about biological tissue at given depth and increase of signal image quality.

21 cl, 47 dwg